Open the 3D-viewer and select one (or more) objects by left-clicking on them (ctrl-leftclick opens for selecting more than one object).
Click the documents menu from the main-menu bar on the left
Select one (or more) documents by clicking the checkmark-boxes to the left of each of them
Click the “Link” button that appears on the right part of the document view.
Written by Julien BenoitUpdated over a week ago